Polypropylene raw material cleaning equipment

Abstract

The utility model discloses a kind of polypropylene raw material cleaning equipment, including body mechanism and cleaning mechanism, the body mechanism includes cleaning cylinder and driving device, the cleaning cylinder is set in the way of downward inclination from feed inlet to discharge port, multiple water outlets are opened on the lateral wall of the cleaning cylinder, and the driving device is used to drive the rotation of cleaning cylinder;The cleaning mechanism includes spraying assembly, brushing assembly and circulation component, and the spraying assembly includes multiple spray pipes and conveying unit, and multiple The spray pipe is installed in cleaning cylinder sequentially.The utility model provides the continuous tumbling and mechanical rubbing wash of raw material by the synergistic effect of cleaning cylinder, inner wall deflector and brush bundle arranged obliquely, improve the ability of oil stain cleaning;And combined with internal spraying and cylinder outer circulation filtration system, the efficient recycling of cleaning water is realized, and water resources are significantly saved;So as to improve production efficiency while reducing comprehensive cost.

Description

Technical Field

[0001] This utility model belongs to the field of polypropylene production technology, specifically relating to a polypropylene raw material cleaning device. Background Technology

[0002] Polypropylene is a widely used thermoplastic. During the recycling process, the recovered polypropylene raw materials often contain contaminants such as oil, dust, and labels. Cleaning is a crucial step in the recycling process, and the cleaning effect directly affects the quality of the recycled plastic.

[0003] Existing cleaning equipment has a simple structure, relies solely on water rinsing, lacks effective mechanical friction, and has no circulation filtration and dehydration functions, resulting in incomplete cleaning, waste of water resources, and cumbersome processes, which increases production costs.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a polypropylene raw material cleaning device that can solve the problems of incomplete cleaning, water waste, and cumbersome procedures in existing cleaning devices.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A polypropylene raw material cleaning device includes a main body and a cleaning mechanism. The main body includes a cleaning cylinder and a driving device. The cleaning cylinder is arranged at a downward inclination from the inlet to the outlet. Multiple water outlet holes are opened on the side wall of the cleaning cylinder. The driving device is used to drive the rotation of the cleaning cylinder. The cleaning mechanism includes a spray assembly, a brush assembly, and a circulation assembly. The spray assembly includes multiple spray pipes and a conveying unit. The multiple spray pipes are installed sequentially inside the cleaning cylinder. Multiple nozzles are installed on each of the multiple spray pipes. The conveying unit is used to convey cleaning water into the spray pipes. The brush assembly includes multiple brush bundles installed sequentially and at equal intervals on the inner side wall of the cleaning cylinder.

[0008] In one or more embodiments of this utility model, a first rotating ring and a second rotating ring are rotatably connected sequentially at both ends on the outer side wall of the cleaning cylinder. A support block is installed at the bottom of both the first rotating ring and the second rotating ring, and a support frame is fixedly connected to both the front and rear ends of the support block.

[0009] In one or more embodiments of this utility model, a feed hopper is fixedly connected to the feed inlet of the cleaning cylinder, a screen is installed inside the feed hopper, and a discharge pipe is fixedly connected to the discharge outlet of the cleaning cylinder.

[0010] In one or more embodiments of this utility model, a plurality of water outlet holes are provided on the cleaning cylinder at equal intervals, and the diameter of the water outlet holes is smaller than the particle size of the polypropylene particles.

[0011] In one or more embodiments of this utility model, the plurality of spray pipes are all configured as annular, and the plurality of spray pipes are coaxially arranged with the cleaning cylinder, and the outlets of the plurality of nozzles are inclined toward one side facing the feed inlet of the cleaning cylinder.

[0012] In one or more embodiments of the present invention, the conveying unit includes a connecting pipe installed between the plurality of spray pipes, a water inlet pipe installed on the connecting pipe, and a water collecting ring fixedly connected to the inner wall of the cleaning cylinder, wherein the end of the water inlet pipe away from the connecting pipe is installed on the water collecting ring.

[0013] In one or more embodiments of the present invention, the conveying unit further includes a plurality of first water inlets formed at equal intervals in a ring on the side wall of the cleaning cylinder, the plurality of first water inlets being connected to a water collection ring, and the second rotating ring being rotatably connected to the outside of the plurality of first water inlets.

[0014] In one or more embodiments of this utility model, a second water inlet is provided on the second rotating ring, and a water supply pipe is fixedly connected to the outer wall of the second rotating ring at the second water inlet. A water pump is installed at the end of the water supply pipe away from the second rotating ring.

[0015] In one or more embodiments of this utility model, a plurality of guide plates are fixedly connected to the inner sidewall of the cleaning cylinder, and the plurality of guide plates and the plurality of brush bundles are arranged alternately.

[0016] In one or more embodiments of the present invention, the circulation assembly includes a water tank installed at the bottom of the cleaning cylinder, a coarse filter screen and a fine filter screen are installed sequentially from top to bottom at the upper port of the water tank, and a water outlet pipe is installed on the side wall of the water tank near the bottom, and the water outlet pipe is installed on the inlet of the water pump.

[0017] Compared with existing technologies, this invention provides continuous tumbling and mechanical friction washing of raw materials through the synergistic effect of the inclined washing cylinder, the inner wall guide plate and the brush bundle, thereby improving the ability to clean oil stains; and combined with the internal spraying and external circulation filtration system, it realizes the efficient recycling of washing water, significantly saving water resources; thus improving production efficiency while reducing overall costs. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a front view of a polypropylene raw material cleaning device according to an embodiment of the present invention.

[0020] Figure 2 This is a perspective view of a polypropylene raw material cleaning device according to an embodiment of the present invention;

[0021] Figure 3 This is a cross-sectional view of a polypropylene raw material cleaning device according to an embodiment of the present invention.

[0022] Figure 4 This is a cross-sectional view of a polypropylene raw material cleaning device according to an embodiment of the present invention;

[0023] Figure 5 This utility model Figure 3 A schematic diagram at point A in the middle;

[0024] Figure 6 This utility model Figure 4 A schematic diagram at point B in the middle.

[0025] Explanation of key figure labels:

[0026] 1-Main body, 11-Washing cylinder, 12-First rotating ring, 13-Second rotating ring, 14-Feed hopper, 15-Screen, 16-Discharge pipe, 17-Water outlet, 18-Support block, 19-Support frame, 2-Washing mechanism, 21-Spray pipe, 22-Nozzle, 23-Connecting pipe, 24-Water inlet pipe, 25-Water collection ring, 26-First water inlet, 27-Second water inlet, 28-Water supply pipe, 29-Water pump, 210-Guide plate, 211-Brush bundle, 212-Water tank, 213-Coarse filter screen, 214-Fine filter screen. Detailed Implementation

[0027] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0028] like Figures 1-4 As shown, a polypropylene raw material cleaning device according to an embodiment of the present invention includes a main body 1 and a cleaning mechanism 2. The main body 1 includes a cleaning cylinder 11 and a driving device. The cleaning cylinder 11 is arranged in a downward inclined manner from the inlet to the outlet. Multiple water outlet holes 17 are opened on the side wall of the cleaning cylinder 11. The driving device is used to drive the rotation of the cleaning cylinder 11. The cleaning mechanism 2 includes a spray assembly, a brush assembly and a circulation assembly. The spray assembly includes multiple spray pipes 21 and a conveying unit. Multiple spray pipes 21 are installed sequentially inside the cleaning cylinder 11. Multiple nozzles 22 are installed on each of the multiple spray pipes 21. The conveying unit is used to convey cleaning water into the spray pipes 21. The brush assembly includes multiple brush bundles 211 installed sequentially and equally spaced on the inner side wall of the cleaning cylinder 11.

[0029] When using this polypropylene raw material cleaning equipment, the polypropylene raw material to be cleaned is added into the cleaning cylinder 11 through the feed inlet. The drive device and spray assembly are started, and the cleaning cylinder 11 begins to rotate under the drive device. Under the action of gravity, centrifugal force and brush assembly, the raw material rolls and rubs while slowly moving towards the discharge port. During this process, the water flow sprayed from the spray pipe 21 washes the raw material, and at the same time, the cleaning cylinder 11 drives multiple rotating brush bundles 211 to thoroughly wash the surface of the raw material. The wastewater flows through the water outlet 17 on the cleaning cylinder 11 into the circulation assembly below for filtration and recycling. The cleaned and dehydrated raw material is discharged from the discharge port and can directly enter the next production process. The cleaning cylinder 11 is opened periodically to clean the settled sludge and other impurities.

[0030] Preferably, the tilt angle of the washing cylinder 11 relative to the horizontal plane is set to 10 to 15 degrees, so that the tilt angle of the washing cylinder 11 is small while the tilt is set, so that the raw material flows in the washing cylinder 11 for a longer time, thereby improving the washing efficiency.

[0031] Optionally, the driving device is usually a drive motor. The drive motor can be installed on the side wall at one end of the feed inlet of the cleaning drum 11, thereby driving the cleaning drum 11 to rotate at a low speed. The drive motor is a variable frequency motor so that different speeds can be output according to the working conditions. The model of the drive motor is selected according to the processing capacity of the cleaning drum 11. The installation of the motor and the cleaning drum 11 are mature existing technologies, which will not be described in detail here.

[0032] like Figures 1-4 As shown, a first rotating ring 12 and a second rotating ring 13 are rotatably connected at both ends of the outer wall of the cleaning cylinder 11. Support blocks 18 are installed at the bottom of both the first rotating ring 12 and the second rotating ring 13, and support frames 19 are fixedly connected to both the front and rear ends of the support blocks 18. The support frames 19 support the support blocks 18, and the support blocks 18 support the first rotating ring 12 and the second rotating ring 13. While supporting the cleaning cylinder 11, the first rotating ring 12 and the second rotating ring 13 do not interfere with the rotation of the cleaning cylinder 11, thus ensuring the stability of the cleaning cylinder 11 during rotation.

[0033] like Figures 1-4 As shown, a feed hopper 14 is fixedly connected to the feed inlet of the washing cylinder 11. A screen 15 is installed inside the feed hopper 14. After the polypropylene raw material is added through the feed hopper 14, it can enter the washing cylinder 11 through the feed inlet. At the same time, the screen 15 can perform preliminary filtration on the polypropylene particles entering the washing cylinder 11, screening out larger impurities. In order not to affect the washing efficiency of polypropylene, the screen 15 may or may not be installed depending on the actual situation. A discharge pipe 16 is fixedly connected to the discharge outlet of the washing cylinder 11. The polypropylene particles that have been washed and dehydrated in the washing cylinder 11 are discharged from the washing cylinder 11 through the discharge pipe 16.

[0034] like Figures 1-6 As shown, multiple water outlet holes 17 are equally spaced on the cleaning cylinder 11, and the diameter of the water outlet holes 17 is smaller than the particle size of the polypropylene particles. This allows the cleaning liquid to carry away impurities such as mud and dirt from the water outlet holes 17 after cleaning the polypropylene, thus dehydrating the cleaned polypropylene, while preventing polypropylene particles from being discharged through the water outlet holes 17.

[0035] like Figures 3-6As shown, multiple spray pipes 21 are all annular and coaxially arranged with the cleaning cylinder 11. The outlets of multiple nozzles 22 are inclined towards the feed inlet of the cleaning cylinder 11. A fixing member is provided between the spray pipes 21 and the inner wall of the cleaning cylinder 11 to stably install the spray pipes 21 inside the cleaning cylinder 11. When the cleaning cylinder 11 rotates, it drives the spray pipes 21 to rotate, causing the multiple nozzles 22 on the spray pipes 21 to spray cleaning liquid to clean the polypropylene raw material inside the cleaning cylinder 11, improving the cleaning efficiency of polypropylene. The nozzles 22 are arranged in the opposite direction to the flow of the raw material, so that the cleaning liquid sprayed by the nozzles 22 impacts the raw material, causing it to move in the opposite direction and improving the rinsing effect.

[0036] like Figures 3-6 As shown, the conveying unit includes a connecting pipe 23 installed between multiple spray pipes 21, a water inlet pipe 24 installed on the connecting pipe 23, and a water collecting ring 25 fixedly connected to the inner wall of the cleaning cylinder 11. The end of the water inlet pipe 24 away from the connecting pipe 23 is installed on the water collecting ring 25. The connecting pipe 23 connects the multiple spray pipes 21 together to facilitate the conveying of cleaning fluid within the spray pipes 21. The water inlet pipe 24 is used to convey cleaning fluid into the connecting pipe 23, and the water collecting ring 25 collects the cleaning fluid conveyed from the outside of the cleaning cylinder 11 and conveys it to the water inlet pipe 24.

[0037] like Figures 3-6 As shown, the conveying unit also includes a plurality of first water inlets 26 that are opened in a ring at equal intervals on the side wall of the cleaning cylinder 11. The plurality of first water inlets 26 are connected to the water collection ring 25, and the second rotating ring 13 is rotatably connected to the outside of the plurality of first water inlets 26.

[0038] like Figures 3-6 As shown, a second water inlet 27 is provided on the second rotating ring 13. A water supply pipe 28 is fixedly connected to the outer wall of the second rotating ring 13 at the second water inlet 27. A water pump 29 is installed at the end of the water supply pipe 28 away from the second rotating ring 13. The water pump 29 pumps the cleaning fluid to the water supply pipe 28, which then delivers the cleaning fluid to the water collection ring 25 through the second water inlet 27 and the first water inlet 26, thus realizing the delivery of cleaning fluid within the water collection ring 25. Since the second rotating ring 13 remains stationary when the cleaning cylinder 11 rotates within it, the fluid delivery is achieved while the cleaning cylinder 11 is rotating. To ensure the sealing of the fluid delivery, a sealing ring is provided between the second rotating ring 13 and the outer wall of the cleaning cylinder 11, ensuring that the delivered cleaning fluid does not leak into the water collection ring 25.

[0039] like Figures 3-6As shown, multiple guide plates 210 are fixedly connected to the inner wall of the cleaning cylinder 11, and the multiple guide plates 210 and multiple brush bundles 211 are arranged alternately. While the brush bundles 211 brush and clean the polypropylene raw material in the cleaning cylinder 11, the guide plates 210 guide and limit the flow of the raw material, thereby increasing the cleaning time of the raw material and thus improving the cleaning effect of the raw material.

[0040] like Figures 1-4 As shown, the circulation assembly includes a water tank 212 installed at the bottom of the cleaning cylinder 11. A coarse filter 213 and a fine filter 214 are installed sequentially from top to bottom at the upper port of the water tank 212. An outlet pipe is installed on the side wall of the water tank 212 near the bottom, and the outlet pipe is connected to the inlet of the water pump 29. After cleaning the raw materials, the cleaning solution flows out through the outlet hole 17 and enters the water tank 212 at the bottom. When the cleaning solution enters, the coarse filter 213 and the fine filter 214 perform secondary filtration to intercept impurities in the cleaning solution. The cleaning solution returning to the water tank 212 is then transported to the water pump 29 through the outlet pipe for recycling.

[0041] In use, the polypropylene raw material to be cleaned is added into the cleaning cylinder 11 through the feed hopper 14. Upon addition, the screen 15 performs preliminary filtration of larger impurities in the polypropylene raw material. The drive unit and water pump 29 are started, and the cleaning cylinder 11 begins to rotate under the drive of the drive unit. Under the action of gravity, centrifugal force, and the brushing components, the raw material tumbles and rubs while slowly moving towards the discharge port. During this process, the cleaning liquid in the water tank 212 is pumped into the spray pipe 21 by the water pump 29, and then the water jets from multiple nozzles 22 rinse and clean the raw material. The cylinder 11 drives multiple rotating brush bundles 211 to thoroughly wash the surface of the raw material. Wastewater flows through the water outlet 17 on the washing cylinder 11 into the water tank 212 below, and is filtered by the coarse filter screen 213 and the fine filter screen 214 before being recycled. After the raw material is cleaned, the water pump 29 is stopped to stop supplying water to the washing cylinder 11, so that the water in the washing cylinder 11 is discharged through the water outlet 17 to dehydrate the raw material. The dehydrated raw material is discharged from the discharge port and can directly enter the next production process. The washing cylinder 11 is opened periodically to clean the settled sludge and other impurities.

[0042] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0043] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A polypropylene raw material cleaning device, characterized in that, include: The main body includes a cleaning cylinder and a driving device. The cleaning cylinder is arranged in a downward inclined manner from the feed inlet to the discharge outlet. Multiple water outlet holes are opened on the side wall of the cleaning cylinder. The driving device is used to drive the rotation of the cleaning cylinder. The cleaning mechanism includes a spray assembly, a brush assembly, and a circulation assembly. The spray assembly includes multiple spray pipes and a conveying unit. The multiple spray pipes are installed sequentially inside the cleaning cylinder, and each spray pipe is equipped with multiple nozzles. The conveying unit is used to convey cleaning water into the spray pipes. The brush assembly includes multiple brush bundles installed sequentially and at equal intervals on the inner sidewall of the cleaning cylinder.

2. The polypropylene raw material cleaning equipment according to claim 1, characterized in that, The outer wall of the cleaning cylinder is rotatably connected to a first rotating ring and a second rotating ring at both ends. The bottom of the first rotating ring and the second rotating ring are both equipped with support blocks, and the front and rear ends of the support blocks are fixedly connected with support frames.

3. The polypropylene raw material cleaning equipment according to claim 2, characterized in that, A feed hopper is fixedly connected to the feed inlet of the cleaning cylinder, a screen is installed inside the feed hopper, and a discharge pipe is fixedly connected to the discharge outlet of the cleaning cylinder.

4. The polypropylene raw material cleaning equipment according to claim 3, characterized in that, Multiple water outlet holes are provided on the cleaning cylinder at equal intervals, and the diameter of the water outlet holes is smaller than the particle size of the polypropylene particles.

5. The polypropylene raw material cleaning equipment according to claim 4, characterized in that, The multiple spray pipes are all arranged in a ring shape and are coaxially arranged with the cleaning cylinder. The outlets of the multiple nozzles are inclined toward the side facing the feed inlet of the cleaning cylinder.

6. The polypropylene raw material cleaning equipment according to claim 5, characterized in that, The conveying unit includes a connecting pipe installed between the multiple spray pipes, a water inlet pipe installed on the connecting pipe, and a water collection ring fixedly connected to the inner wall of the cleaning cylinder. The end of the water inlet pipe away from the connecting pipe is installed on the water collection ring.

7. The polypropylene raw material cleaning equipment according to claim 6, characterized in that, The conveying unit also includes a plurality of first water inlets opened in a ring at equal intervals on the side wall of the cleaning cylinder. The plurality of first water inlets are connected to a water collection ring, and the second rotating ring is rotatably connected to the outside of the plurality of first water inlets.

8. The polypropylene raw material cleaning equipment according to claim 7, characterized in that, The second rotating ring has a second water inlet, and a water supply pipe is fixedly connected to the outer wall of the second rotating ring at the second water inlet. A water pump is installed at the end of the water supply pipe away from the second rotating ring.

9. A polypropylene raw material cleaning device according to claim 8, characterized in that, Multiple guide plates are fixedly connected to the inner wall of the cleaning cylinder, and the multiple guide plates and multiple brush bundles are arranged alternately.

10. A polypropylene raw material cleaning device according to claim 9, characterized in that, The circulation assembly includes a water tank installed at the bottom of the cleaning cylinder. A coarse filter and a fine filter are installed sequentially from top to bottom at the upper port of the water tank. A water outlet pipe is installed on the side wall of the water tank near the bottom and is installed at the inlet of the water pump.

Images